Improvement in making paper barrels



W. H. MURPHY.

MAKING PAPER BARRELS. No.175,137. Patented March 21,1876.

Zizvwai5r N PETERS. FHQTO-LITHQGRAPHER, WASHINGTON. D 0.

UNITED STATES PATENT Demon.

WILLIAM H. MURPHY, OF SYRACUSE, NEW YORK, ASSIGNOR OF ONE-HALF HIS RIGHT TO JOHNSTON MILLER, OF SAME PLACE.

IMPROVEMENT IN MAKING PAPER BARRELS.

Specification forming part of Letters Patent No. 175,137, dated March 21, 1876; application filed January 8, 1876.

To all whom. it may concern:

Be it known that I, WILLIAM H. MURPHY,

per Barrels having a bilge, and the apparatus by which it is done; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, in which, on Sheet Figure 1 represents a top plan view of my apparatus, and Fig. 2 an end View Fig. 3, a perspective view of a barrel made after my method Fig. 4, a sectional view of the same.

My method consists in making paper packages having a bilge in two or more (I prefer two) segments, by the use of my apparatus, hereinafter described, by taking the paper or straw board of the desired thickness and size, either directly from the wet-machine (so called) in" the paper-mill, or a dampened sheet of the same material, and subjecting it to pressure between two heated hollow dies and dryin g it while under the pressure simultaneously, so that when dry and removed from the dies it is fixed in the shape of a segment of the desired package, and is, ready to go into the package.

The details of my method are hereinafter more specifically set forthin connection with the description of my apparatus and the mode of operation thereof, which is constructed and operated as follows: I first make a male hollow die, A, the lower outer surface of which conforms to the shape of the inner surface of a segment of the package I desire to manufacture.

' At each end of the periphery of the lower outer surface of this die I make the surface plane or straight, as shown in Fig. 1, at the points m, for a short distance from the end, in order that the heads and the top and bottom hoops of the package may fit better. Between these straight portions I make the lower outer sur= face of this die bilging or deeper in the center. I then make a female hollow die, B, to fit the male die, or, rather, as much larger at all points of the die proper as the thickness of the material to be used for the packages. I make these dies hollow, so that I can heat'them by introducing steam, for which purpose I provide each with an inlet-pipe, a, and an exitpipe, b, in the male die A, and an inlet-pipe, c, and an exit-pipe, d, in the female die B. The flow of the steam into and its exit from the dies is controlled by a stop-cock, or in any other ordinary manner. Upon the upper surface of the male die A I place two knives, a a,

one on each side, which are worked by means of the lever arrangement 0, as shown 1n the drawings, and so constructed and arranged as to give a shear out. Upon each end of the male die A I place a knife, 1', either fastened rigidly thereto and of the shape shown in the drawings, or I can, and rather prefer, to place the knives thereon loosely and work them by a lever arrangement. The dies A and B are to be placed in a hydraulic or other press for operation.

Having thus described the construction of my apparatus, I will proceed to describe the mode of operation thereof.

Having separated the dies A and B a suitable distance from each other, they having been heated to the proper drying-heat, but not enough to burn or char, I place a sheet of wet paper (or dampened) or straw board, 8, of suitable size to make one segment of the desired variety of package upon the female die '8, and then, by depressing the male die A, or elevating the female die B, according to whichever one is fixed solid in the press, I press the sheet of paper to the desired form or shape between the two dies, and at the same time the paper, being between two heated surfaces, is quickly dried and fixed permanently in the desired shape. When nearly dry, I trim off the edges with the knives upon the male die, which leaves the edges of the segments square and straight. As shown in the drawings, theknives 1' will trim off the ends of the segment when the pressure is applied to the paper. Or, if I use loose knives on the ends, I can trim the ends off after drying, the same as Ido the edges. Then, opening the dies, I remove the pressed sheet, insert another wet sheet, and repeat the operation.

In this way I make the segments of the packages all of the same size, shape, and form, and ready to put together without any further cutting of any kind, varying the size of the dies with the size of the packages made.

To make a complete package, I take the segments and fasten their edges together by my joint X. for which I have applied for Letters Patentot' the United States, put on a hoop at each end, and also two or three intermediate hoops, if the package is large and intended for heavy goods or merchandise, insert the heads, and it is complete.

In case I desire to transport a large number L of packages, the segments fitting into each parts, by the use of the heated hollow male and female dies A and B, constructed and operated as above described, by means of which the previously-dampened paper for each segment is dried, shaped, the bilge made therein, and trimmed simultaneously, and made ready to be placed in the package, substantially as above described.

2. The combination of the hollow male and female dies A and B, provided with inlet and exit pipes for the steam for heating them, and the trimming-knives n and 1*, combined, constructed, and operated substantially as above described.

3. A paper package made 'in segmental parts, having the central portion made with a bilge, and a short space at each end, made straight and free from bilge, substantially as and for the purposes above set forth.

W. H. MURPHY.

Witnesses:

JOHNSTON MILLER, G. W. SMITH. 

